Front-End Developer, Level 4
Posted
Summary
Onsite Front-End Developer (Level 4) in Springfield, VA building user interfaces and data-visualization components for TSSC technical security applications in classified environments, requiring an active TS/SCI clearance. Day-to-day work uses modern JavaScript frameworks (React/Angular/Vue), HTML5/CSS3, build tools, and REST APIs, with technical leadership for junior developers.
Front-End Developer (Level 4)
Location: Onsite – Springfield, VA
- Clearance Requirement: TS/SCI
- Salary: $170,000
DUTIES:
- Design and implement user interfaces for TSSC applications and analytical tools
- Develop and maintain user-facing features using modern front-end technologies
- Ensure the technical feasibility of UI/UX designs and translate them into high-quality code
- Develop interactive data-visualization components for technical security data
- Create responsive web applications for field use by TSSC personnel
- Optimize applications for maximum speed, scalability, and accessibility
- Implement user authentication and authorization interfaces
- Ensure compliance with security requirements for classified environments
- Coordinate with back-end developers to integrate front-end components with APIs
- Optimize application performance and usability for technical security operations
- Provide technical leadership for junior front-end developers
- Document front-end architecture, components, and interfaces
- Conduct usability testing and implement improvements based on user feedback
SKILLS AND EXPERIENCE – REQUIRED:
- Bachelor's degree in Computer Science, Web Development, or a related field
- Minimum of eight years of experience in front-end development
- Experience with modern JavaScript frameworks such as React, Angular, or Vue
- Knowledge of HTML5, CSS3, and responsive-design principles
- Experience developing applications for secure environments
- Experience with front-end build tools such as Webpack, Babel, and npm/yarn
- Strong understanding of responsive design, cross-browser compatibility, and web-performance optimization
- Knowledge of RESTful APIs and asynchronous request handling
- Understanding of web-security best practices
- Experience with data-visualization libraries and techniques
SKILLS AND EXPERIENCE – DESIRED:
- Experience working with classified systems and security requirements
- Knowledge of UX/UI design principles for technical applications
- Experience with technical data visualization
- Understanding of TSSC operations and requirements
- Experience with secure authentication methods
- Proficiency with TypeScript
- Experience with front-end testing frameworks such as Jest, Cypress, or Playwright
- In-depth knowledge of web accessibility standards
- Familiarity with state-management libraries such as Redux, MobX, or Vuex
- Experience with GraphQL
- Knowledge of server-side rendering or static-site generation frameworks
We are an equal opportunity employer, and we are an organization that values diversity. We welcome applications from all qualified candidates, including minorities and persons with disabilities.
req26-00702